1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2018 Intel Corporation
3 */
4
5 #include <stdlib.h>
6 #include <string.h>
7
8 #include <rte_ethdev.h>
9 #include <rte_string_fns.h>
10
11 #include "rte_eth_softnic_internals.h"
12
13 int
softnic_link_init(struct pmd_internals * p)14 softnic_link_init(struct pmd_internals *p)
15 {
16 TAILQ_INIT(&p->link_list);
17
18 return 0;
19 }
20
21 void
softnic_link_free(struct pmd_internals * p)22 softnic_link_free(struct pmd_internals *p)
23 {
24 for ( ; ; ) {
25 struct softnic_link *link;
26
27 link = TAILQ_FIRST(&p->link_list);
28 if (link == NULL)
29 break;
30
31 TAILQ_REMOVE(&p->link_list, link, node);
32 free(link);
33 }
34 }
35
36 struct softnic_link *
softnic_link_find(struct pmd_internals * p,const char * name)37 softnic_link_find(struct pmd_internals *p,
38 const char *name)
39 {
40 struct softnic_link *link;
41
42 if (name == NULL)
43 return NULL;
44
45 TAILQ_FOREACH(link, &p->link_list, node)
46 if (strcmp(link->name, name) == 0)
47 return link;
48
49 return NULL;
50 }
51
52 struct softnic_link *
softnic_link_create(struct pmd_internals * p,const char * name,struct softnic_link_params * params)53 softnic_link_create(struct pmd_internals *p,
54 const char *name,
55 struct softnic_link_params *params)
56 {
57 struct rte_eth_dev_info port_info;
58 struct softnic_link *link;
59 uint16_t port_id;
60 int ret;
61
62 /* Check input params */
63 if (name == NULL ||
64 softnic_link_find(p, name) ||
65 params == NULL)
66 return NULL;
67
68 port_id = params->port_id;
69 if (params->dev_name) {
70 int status;
71
72 status = rte_eth_dev_get_port_by_name(params->dev_name,
73 &port_id);
74
75 if (status)
76 return NULL;
77 } else {
78 if (!rte_eth_dev_is_valid_port(port_id))
79 return NULL;
80 }
81
82 ret = rte_eth_dev_info_get(port_id, &port_info);
83 if (ret != 0)
84 return NULL;
85
86 /* Node allocation */
87 link = calloc(1, sizeof(struct softnic_link));
88 if (link == NULL)
89 return NULL;
90
91 /* Node fill in */
92 strlcpy(link->name, name, sizeof(link->name));
93 link->port_id = port_id;
94 link->n_rxq = port_info.nb_rx_queues;
95 link->n_txq = port_info.nb_tx_queues;
96
97 /* Node add to list */
98 TAILQ_INSERT_TAIL(&p->link_list, link, node);
99
100 return link;
101 }
102